The Grow Awards 2026 🏆

Back to Grow Questions

Leaves purple

Thebollstarted grow question 3y ago

Some leaves are turning purple, can you help me? I know My plant has some nutrients deficency and i am already using fertilizing

Theboll

Theboll

Theboll

Theboll

Solved

Feeding. Deficiences

likes

Sikkkaanswered grow question 3y ago

I wouldnt bother unless you also notice slow growth or smth else out of the place. red stems and leaves appear due to more causes: light exposure, strain.. but also aging and stress( nutrient deficiencies, ph problems, )

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

Rust spots on leaves, second grow and need some confirmation.I'm noticing rust spots on my leaves, which I suspect could be due to nutrient burn or lockout, given the PPM is unusually high for this stage of growth. To tackle this, I'm planning a simple flush with some Cal-Mag, keeping the pH at 6.5. Does this sound like the right approach?

Feeding. Deficiences

9mo ago

1

1

Solved

Aussiegreenthumb82

Follow up question am I underfeeding or doing well Thankyou GrowingGrannie Caltivatorfrog foranswers lovethevibe. Question continues from last. Yesterday flush dH2O run off pH 6.8, EC 1454, TDS 724ppm. 1L nutes runoff pH6.8.EC2058.TDS1029ppm. today 1L dH20 r.off ph7.13 EC1760 TDS900ppm. She eating well? WhypHspikewhenIaddpH5.8?

Feeding. Schedule

Feeding. Deficiences

3y ago

2

4

Solved

Deficit/The lack of Guys tell me what to do!? to cure the plant!?

Leaves. Other

Feeding. Deficiences

Feeding. Other

5y ago

2

2

Solved

Calmag When should i start watering calmag? In my last grow all my leaves startet ro crumble and looked nasty because i had a calmag deficiency, i then had to buy it and s lot of damage was already done. So when is a good point to start watering it and at what dosage should i start

Feeding. Deficiences

2y ago

4

Solved

Deficiency What do you think the deficiency is in the last picture?

Feeding. Deficiences

2y ago

5

4

Solved

TheNextGanjaMan

Yellow leaves near the harvest This would be my last week of fertilizer watering. And the plant has the leaves turned to the side and with yellow spots. Sign of lack of zinc? I would start making the flush from Friday, is it recommended to start now? In about 2 weeks I will harvest (I tried to water today)

Leaves. Curl up

Leaves. Color - Yellow

Feeding. Deficiences

3y ago

2

6

Solved

My Plant has a defizid Hallo Freunde, Meine Ladys haben wohl bisschen Probleme, kann mir jemand sagen was es sein konnte ?

Leaves. Color - Yellow

Feeding. Deficiences

3y ago

2

2

Solved

What to do? Leaves are getting worse.Had some light strain earlier on, but now im leaning toward a deficiency. Been feeding on a low-dose flora series schedule with clean ph water for every other feed. Just had clean water yesterday and nutes 3 days before. Dry out between feeds. Nitrogen? Calmag? Other?

Leaves. Edges burnt

Leaves. Tips - Burnt

Feeding. Deficiences

5y ago

3

2

Solved

Yellow leaf or normal Please take a look at my just turned 4week old auto critical purple grown in 3 gallon fabric pots filled with Stonington blend soil.my question is how do my leaves look.I put 2 teaspoons of Stonington plant food and 1 teaspoons of bat guano 3 days ago

Feeding. Deficiences

5y ago

1

2

Solved

The_Dank_Review

Not sure why but she is showing either magnesium, calcium, or potassium deficiency. Do you agree? My PH is 6.3 this water, and was 6 the last sprinkle I gave her.

Other. General questions

Setup. Strain - Autoflowering

Feeding. Deficiences

5y ago

1

1

Solved

Nutrient problems I cant identify confidently as I am a noob Hmmm, I've got some nutrient issues by the looks. Is that dark splotch on the leaf indicating phosphorus deficiency? My pH is OK. Looks like a few things are going wrong. Thanks!!

Feeding. Deficiences

6y ago

3

Solved

Health Is something wrong with my girls ????

Leaves. Other

Plant. Stem - Red or purple

Feeding. Deficiences

3y ago

1

Solved

Rust-colored margins and dots. Potassium excess, Calcium excess, or something else?I need your advice to get back to feeding. I kindly ask you to read my last comment (27/07) in the diary and take a look at the whole diary. I also uploaded a video. Thank you 🙏

Leaves. Edges burnt

Feeding. Deficiences

4y ago

1

1

Solved

NPK Problem? buds not devolping Nitrogen Toxicity/Abundance, I believe is my problem. As suggested by BluntZilla in my other question it could be lacking P and K as well. Here are pictures under normal lighting in hopes that someone can help out.

Buds. Not fattening

Feeding. Deficiences

5y ago

8

8

Solved

Who knows Is this nute burn or some deficiency ? Lol

Feeding. Deficiences

4y ago

3

Solved

Potassium deficiency?Can you confirm this is a potassium deficiency? This happened after a flush of an amended soil (SoHum), please take into account before you answer. I do have some Down to Earth Organic White Azomite Powder OTW, just not sure how much to add yet.

Leaves. Tips - Burnt

Feeding. Deficiences

5y ago

2

Solved

Help please with feeding advice.Hello. Input: Calmag 120ppm, Pk 150ppm, A+B 160ppm, megafol 51ppm, melassa 5ml, Total input 739ppm, 5.97ph. Output: first drainage 1000-1100ppm. Last drainage output: 5.7ph, orange 960ppm, Cbd 817ppm, Zkittlez 1000ppm. Dont understand, what happened with my girls after 3days late

Feeding. Deficiences

5y ago

2

1

Solved

Deficiency or screw up?What is this? At first I thought it was a phosphorus deficiency so I flushed with extra bloom nutes & overnight the damage doubled. Is it a pest or did I just fuck up bad? She also has seemed to have stopped growing. No noticeable diff in size recently

Feeding. Deficiences

5y ago

1

2

Solved

Deficiency - Excess, i'm so lost Hello guys i'm completly lost with these ones. I have 2 different plant which both have something different wrong. Either way, what do you guys think ? They are both in +30 of bloom. I'm using calmag time to time and biobizz products + bloombastic

Leaves. Tips - Burnt

Leaves. Other

Feeding. Deficiences

5y ago

1

1

Solved

Zinc deficiency?My plant's top leaves appear thin and pale. My ideas are iron deficiency or zinc deficiency. I'm using RO water. The plant was recently aggressively trimmed of course. Should i flush with non-RO water to increase the zinc?

Feeding. Deficiences

4y ago

1

1